When you keep checking on the market all the time you will actually lost interest of the market and this causes panic to all weak hands and if you sell out of panic you will regret when the market picks up
That is right due to the fact that we are expecting more of the price, and what we just want is to see the good side and without taking advantage of the positive side, that is why we should be careful with our own action.
I don't need to panic, indeed, if it's just the beginning of bitcoin trading, let alone using big capital, it must be in panic because you bought it when the price was expensive and suddenly the BCC dropped dramatically. but calm down later also back and can be more expensive. the point is just to wait if you trade and don't have to panic because the prices are up and down